Hitachi RAC-350GA User manual

Brand: Hitachi

Model: RAC-350GA

Category: Split-system air conditioners

Type: User manual

This manual is also suitable for

RAC-260GA

– 1 –

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-260GA/RAC-260GA

RAS-350GA/RAC-350GA

OUTDOOR UNIT INDOOR UNIT

RAC-350GA

RAS-260GA

RAS-350GA

Instruction manual Page 1~24

To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.

RAC-260GA

(EN1) RAS/RAC-260/350GA 18/1/06, 10:11 AM1

– 2 –

SAFETY PRECAUTION

●

Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.

●

Pay special attention to signs of “ Warning” and “ Caution”. The “Warning” section contains matters which,

if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may

result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.

●

The sign indicate the following meanings.

●

Please keep this manual after reading.

WARNING

PRECAUTIONS DURING INSTALLATION

●

Do not reconstruct the unit.

Water leakage, fault, short circuit or fire may occur if you reconstruct

the unit by yourself.

●

Please ask your sales agent or qualified technician for the installation

of your unit. Water leakage, short circuit or fire may occur if you install

the unit by yourself.

●

Please use earth line.

Do not place the earth line near water or gas pipes, lightning-conductor,

or the earth line of telephone. Improper installation of earth line may

cause electric shock.

●

A circuit breaker should be installed depending on the mounting site of

the unit. Without a circuit breaker, the danger of electric shock exists.

●

Do not install near location where there is flammable gas. The outdoor

unit may catch fire if flammable gas leaks around it.

●

Please ensure smooth flow of water when installing the drain hose.

CAUTION

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

PRECAUTIONS DURING OPERATION

●

Avoid an extended period of direct air flow for your health.

●

Should abnormal situation arises (like burning smell), please stop operating the unit

and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire may

occur if you continue to operate the unit under abnormal situation.

●

Please contact your agent for maintenance. Improper self maintenance may cause

electric shock and fire.

●

Please contact your agent if you need to remove and reinstall the unit. Electric

shock or fire may occur if you remove and reinstall the unit yourself improperly.

●

Do not insert a finger, a rod or other objects into the air outlet or inlet. As the

fan is rotating at a high speed, it will cause injury. Before cleaning, be sure

to stop the operation and turn the breaker OFF.

●

During thunder storm, disconnect and turn off the circuit breaker.

●

Do not use any conductor as fuse wire, this could cause fatal accident.

Make sure to connect earth line.

Indicates the instructions that must be followed.

The sign in the figure indicates prohibition.

(EN1) RAS/RAC-260/350GA 18/1/06, 10:11 AM2

– 3 –

PRECAUTIONS DURING OPERATION

●

Do not attempt to operate the unit with wet hands, this could cause fatal

accident.

●

When operating the unit with burning equipments, regularly ventilate the

room to avoid oxygen insufficiency.

●

Do not direct the cool air coming out from the air-conditioner panel to face

household heating apparatus as this may affect the working of apparatus

such as the electric kettle, oven etc.

●

Do not use any aerosol or hair sprays near the indoor unit. This chemical

can adhere on heat exchanger fin and blocked the evaporation water flow

to drain pan. The water will drop on tangential fan and cause water splashing

out from indoor unit.

●

Please ensure that outdoor mounting frame is always stable, firm and

without defect. If not, the outdoor unit may collapse and cause danger.

●

Do not splash or direct water to the body of the unit when cleaning it as this

may cause short circuit.

●

When operating the unit with the door and windows opened, (the room humidity is always above

80%) and with the air deflector facing down or moving automatically for a long period of time,

water will condense on the air deflector and drips down occasionally. This will wet your furniture.

Therefore, do not operate under such condition for a long time.

●

If the amount of heat in the room is above the cooling or heating capability of the unit (for

example: more people entering the room, using heating equipments and etc.), the preset room

temperature cannot be achieved.

●

Do not climb on the outdoor unit or put objects on it.

●

Please switch off the unit and turn off the circuit breaker during cleaning, the

high-speed fan inside the unit may cause danger.

●

Turn off the circuit breaker if the unit is not to be operated for a long period.

●

The product shall be operated under the manufacturer specification and

not for any other intended use.

●

Do not put water container (like vase) on the indoor unit to avoid water

dripping into the unit. Dripping water will damage the insulator inside the unit

and causes short-circuit.

●

Do not place plants directly under the air flow as it is bad for the plants.

(EN1) RAS/RAC-260/350GA 18/1/06, 10:11 AM3

– 4 –

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

Air filter

To prevent dust from coming into the indoor unit.

(Refer page 20)

Front panel

Indoor unit indicators

Light indicator showing the operating condition.

(Refer page 5)

Horizontal deflector

●

Vertical deflector

(Air Outlet)

(Refer page 11)

Remote controller

Send out operation signal to the indoor unit. So as to

operate the whole unit.

(Refer page 6)

OUTDOOR UNIT

Drain pipe

Condensed water drain to outside.

Connecting cord and insulation pipe for piping

Air inlet (Back, Left side)

Air outlet

Drain pipe

Condensed water drain to outside.

Connecting cord and insulation pipe for piping

Air inlet (Back and Left side)

Air outlet

WIDTH (mm)

780

700

750

MODEL

RAS-260GA/350GA

RAC-260GA

RAC-350GA

HEIGHT (mm)

280

570

DEPTH (mm)

210

280

MODEL NAME AND DIMENSIONS

RAC-260GA

RAC-350GA

(EN1) RAS/RAC-260/350GA 18/1/06, 10:11 AM4

– 5 –

INDOOR UNIT INDICATORS

TEMPORARY SWITCH

Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick

(example toothpick)]

● By pressing the temporary switch, the operation is done in previously set operation mode.

● When the operation is done using the temporary switch after the power source is turned off and turn on

again, the operation is done in automatic mode.

OPERATION INDICATOR

FILTER LAMP

When the device is operated for a total of about 100

hours, the FILTER lamp lights to indicate that it is time

to clean the filter. The lamp goes out when the POWER

SWITCH set to OFF and ON again.

OPERATION LAMP

This lamp lights during operation.

TIMER LAMP

This lamp lights when the timer is working.

TEMPORARY

SWITCH

TEMPORARY

SWITCH

Press

Temporary Switch

Non-conductor Stick

(EN1) RAS/RAC-260/350GA 18/1/06, 10:11 AM5

– 6 –

RESET

AUTO

COOL

DEHUMIDIFY

CIRCULATION

FAN

FAN SPEED

LOW

MED

SLEEPING

STOP (CANCEL)

START (RESERVE)

START/STOP

TIME

TIMER SET

TIMER SELECTOR

ON TIMER

OFF TIMER

AUTO SWING

NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT

REMOTE CONTROLLER

● This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting is

controlled electronically, the range of control may be shorter.

This unit can be fixed on a wall using the fixture provided. Before fixing it, make sure the indoor unit can

be controlled from the remote controller.

● Handle the remote controller with care. Dropping it or getting it wet may compromise its signal transmission

capability.

● After new batteries are inserted into the remote controller, the unit will initially require approximately 10

seconds to respond to commands and operate.

●

Signal emitting window/transmission sign

Point this window toward the indoor unit when controlling it.

The transmission sign blinks when a signal is sent.

●

Display

This indicates the room temperature selected, current time, timer status, function

and intensity of circulation selected.

●

START/STOP button

Press this button to start operation. Press it again to stop operation.

●

SLEEP button

Use this button to set the sleep timer.

●

TEMPERATURE button

Use this button to raise or lower the temperature setting. (Keep pressed, and

the value will change more quickly.)

●

OFF-TIMER button Select the turn OFF time.

●

ON-TIMER button Select the turn ON time.

●

TIME button

Use this button to set and check the time and date.

●

RESET button

●

FUNCTION selector

Use this button to select the operating mode. Every time you press it,

the mode will change from

(AUTO) to (COOL) to (DEHUMIDIFY) to

(CIRCULATION) and to (FAN) cyclically.

●

FAN SPEED selector

This determines the fan speed. Every time you press this button, the intensity

of circulation will change from (AUTO) to (HI) to (MED) to (LOW)

(during the (FAN) mode, from HI to MED to LOW).

●

AUTO SWING button

Controls the angle of the horizontal air deflector.

●

TIMER control

Use this button to set the timer.

●

RESERVE button Time setting reservation.

●

CANCEL button Cancel time reservation.

Precautions for Use

●

Do not put the remote controller in the following places.

●

Under direct sunlight.

●

In the vicinity of a heater.

●

Handle the remote controller carefully. Do not drop it on the floor,

and protect it from water.

●

Once the outdoor unit stops, it will not restart for about 3 minutes

(unless you turn the power switch off and on or unplug the power

cord and plug it in again).

This is to protect the device and does not indicate a failure.

●

If you press the FUNCTION selector button during operation, the

device may stop for about 3 minutes for protection.

(EN2) RAS/RAC-260/350GA 18/1/06, 10:12 AM6

– 7 –

RESET

AUTOMATIC OPERATION

The device will automatically determine the mode of operation COOL, or Dehumidify, depending on the

initial room temperature. The selected mode of operation will not change when the room temperature

varies.

■ As the settings are stored in memory in the remote controller, you

only have to press the

(START/STOP) button next time.

Press the FUNCTION selector so that the display indicates

the

(AUTO) mode of operation.

● When AUTO has been selected, the device will

automatically determine the mode of operation COOL or

Dehumidify, depending on the initial room temperature

and outdoor temperature.

Press the

(START/STOP) button.

Operation starts with a beep.

Press the button again to stop operation.

You can raise or lower the temperature setting as necessary by

maximum of 3°C.

Press the temperature button and the

temperature setting will change by 1°C each

time.

● The preset temperature and the actual room temperature may

vary somewhat depending on conditions.

● The display does not indicate the preset temperature in the

AUTO mode. If you change the setting, the indoor unit will

produce a beep.

■ CONDITION OF AUTOMATIC OPERATION

START

STOP

Over 27°C COOL

16~27°C

TEMPERATURE

SETTING

FUNCTION

27°C

HIGH at start, LOW after

the preset temperature is

reached.

DEHUMIDIFY

INITIAL ROOM

TEMPERATURE (APPROX.)

FAN SPEED

Slightly lower than the

room temperature

LOW

● The selected mode of operation will not change during the operation even though the room temperature

change.

(EN2) RAS/RAC-260/350GA 18/1/06, 10:12 AM7

– 8 –

■

As the settings are stored in memory in the remote controller, you

only have to press the

(START/STOP) button next time.

RESET

COOLING OPERATION

Use the device for cooling when the outdoor temperature is 22-42°C.

If indoor humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit.

Press the FUNCTION selector so that the display indicates

(COOL).

Set the desired FAN SPEED with the

(FAN SPEED) button

(the display indicates the setting).

(AUTO): The FAN SPEED is HI at first and varies to

MED automatically when the preset temperature

has been reached.

(HI) : Economical as the room will become cool

quickly.

(MED) : Quiet.

(LOW) : More quiet.

Set the desired room temperature with the TEMPERATURE

button (the display indicates the setting).

The range of 25-28°C is recommended as the

room temperature for cooling.

If the temperature setting is 27°C, the room

temperature will be controlled at around 27°C.

The temperature setting and the actual room temperature may

vary some how depending on conditions.

Press the

(START/STOP) button. Cooling operation starts

with a beep. Press the button again to stop operation. The

cooling function does not start if the temperature setting is

higher than the current room temperature (even though the

(OPERATION) lamp lights). The cooling function will start as

soon as you set the temperature below the current room

temperature.

START

STOP

(EN2) RAS/RAC-260/350GA 18/1/06, 10:12 AM8

– 9 –

RESET

■ Dehumidifying Function

When the room temperature is higher than the temperature setting: The device will dehumidify the room,

reducing the room temperature to the preset level.

When the room temperature is lower than the temperature setting: Dehumidifying will be performed at

the temperature setting slightly lower than the current room temperature, regardless of the temperature

setting. The function will stop (the indoor unit will stop emitting air) as soon as the room temperature

becomes lower than the setting temperature.

DEHUMIDIFYING OPERATION

Use the device for dehumidifying when the room temperature is over 16°C.

When it is under 15°C, the dehumidifying function will not work.

Set the desired room temperature with the TEMPERATURE

button (the display indicates the setting).

The range of 20-26˚C is recommended as

the room temperature for dehumidifying.

Press the (START/STOP) button. Dehumidifying operation

starts with a beep. Press the button again to stop operation.

■ As the settings are stored in memory in the remote controller, you

only have to press the (START/STOP) button next time.

START

STOP

Press the FUNCTION selector so that the display indicates

(DEHUMIDIFY).

The FAN SPEED is set at LOW automatically.

The FAN SPEED button does not work.

(EN2) RAS/RAC-260/350GA 18/1/06, 10:12 AM9

– 10 –

RESET

FAN SPEED (AUTO)

.....

When the AUTO fan speed mode is set in the cooling operation:

● When the difference of room temperature and setting temperature is

large, fan starts to run at HI speed.

● After room temperature reaches the preset temperature, the cooling

operation, which changes the fan speed and room temperature to obtain

optimum conditions for natural healthful cooling will be performed.

For the cooling operation

FAN OPERATION

You can use the device simply as an air circulator. Use this function to dry the interior of the indoor

unit at the end of summer.

Press the FUNCTION selector so that the display indicates

(FAN).

Press the (FAN SPEED) button.

Press the (START/STOP) button. Fan operation starts

with a beep. Press the button again to stop operation.

START

STOP

CIRCULATION OPERATION

Press the FUNCTION selector so that the display indicates

(CIRCULATE).

Press the FAN SPEED button and select the desired FAN

SPEED (the display indicates your choice).

Press the temperature control button to set to the desired

temperature.

Press the (START/STOP) button. Circulating operation

starts with a beep. Press the button again to stop operation.

■ As the settings are stored in memory in the remote controller,

you only have to press the (START/STOP) button next time.

START

STOP

(EN2) RAS/RAC-260/350GA 18/1/06, 10:13 AM10

– 11 –

ADJUSTING THE AIR DEFLECTOR

Adjustment of the conditioned air to the left and right.

Hold the vertical air deflector as shown in the figure and adjust

the conditioned air to the left and right.

● If the “ (AUTO SWING)” button is pressed once,

the horizontal air deflector swings up and down. If the

button is pressed again, the deflector stops in its current

position. Several seconds (about 6 seconds) may be

required before the deflector starts to move.

● Use the horizontal air deflector within the adjusting range

shown on the right.

● When the operation is stopped, the horizontal air deflector

moves and stops at the position where the air outlet

closes.

CAUTION

● In “Cooling” operation, do not keep the horizontal air

deflector swinging for a long time. Some dew may form

on the horizontal air deflector and dew may drop.

Adjustment of the conditioned air in the upward and downward

directions.

The horizontal air deflector is automatically set to the proper

angle suitable for each operation. The deflector can be swung

up and down continuously and also set to the desired angle

using the “ (AUTO SWING)” button.

RESET

CAUTION

● When operating the unit in cooling operation with the air deflector facing down and moving automatically

for a long period of time, water will condensed on the air deflector and drips down occasionally. This

will wet your furniture.

Vertical

about 15

about 60

When cooling,

dehumidifying

(EN2) RAS/RAC-260/350GA 18/1/06, 10:13 AM11

– 12 –

RESET

HOW TO SET THE TIMER

ON/OFF-Timer

● The device will turn on (off) and off

(on) at the designated times.

● The switching occurs first at the

preset time that comes earlier.

● The arrow mark appearing on the

display indicates the sequence of

switching operations.

Press the (ON-OFF)

button so that the (OFF)

mark blinks.

OFF-Timer

You can set the device to turn off

at the present time.

After you change the

batteries;

How to Cancel Reservation

Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL)

button.

The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.

Set the current month and

day with the TIMER control

button.

Press the (OFF-TIMER)

button. The (OFF) mark blinks

on the display.

Press the (ON-TIMER)

button the (ON) mark blinks

on the display.

Set the turn-off time

with the TIMER control

button.

Press the (RESERVE)

button.

Press the (ON-

TIMER) button so that the

(OFF) mark lights and

the (ON) mark blinks.

NOTE

You can set only one of the OFF-timer,

ON-timer and ON/OFF-timer.

ON-Timer

Time, Day, Month

● The device will turn on at

the designated times.

TIME, DAY,

MONTH

(current time,

day, month)

OFF TIMER

ON TIMER

RESERVE

CANCEL

M D

STOP

Start

Stop

Start Stop

(EN3) RAS/RAC-260/350GA 18/1/06, 10:15 AM12

– 13 –

Point the signal window of the remote controller toward the indoor unit, and

press the (RESERVE) button.

The (OFF) mark starts lighting instead of flashing and the sign (RESERVED)

lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.

● The time indication will disappear

automatically in 10 seconds.

● To check the current time setting,

press the (TIME) button twice.

The setting of the current time is

now complete.

● The timer may be used in three ways: off-timer, on-timer, and ON/OFF (OFF/ON)-timer. Set

the current time at first because it serves as a reference.

● As the time settings are stored in memory in the remote controller, you only have to press

the (RESERVE) button in order to use the same settings next time.

Press the

(TIME) button.

Set the current time with the

TIMER control button.

Example: The current time is 1:30 p.m.

Set the turn-off time with the

TIMER control button.

The setting of turn-off time is now complete.

Example: The device will turn off at 11:00p.m.

Example:

The device will automatically turn on earlier so that the preset

temperature can be reached at 7:00 a.m.

The setting of the turn-on time is now complete.

Set the turn-on time with the

TIMER control button.

Point the signal window of the remote controller toward the indoor unit, and

press the (RESERVE) button.

The (ON) mark starts lighting instead of flashing and the (RESERVED) sign

lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.

Point the signal window of the remote controller toward the indoor unit, and

press the (RESERVE) button.

The (ON) mark starts lighting instead of flashing and the (RESERVED) sign

lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.

Set the turn-on time with the

TIMER control button.

Example:

The device will turn off at 10:30 p.m. and then automatically

turn on earlier so that the preset temperature can be reached

at 7:00 a.m.

The settings of the turn-on/off times are now complete.

Press the (TIME) button again.

The time indication starts lighting

instead of flashing.

PM PM

(EN3) RAS/RAC-260/350GA 18/1/06, 10:15 AM13

– 14 –

HOW TO SET THE SLEEP TIMER

Set the ON-timer.

Set the current time first if it is not set before (see the pages for setting the

current time). Press the (SLEEP) button, and the display changes as

shown below.

Mode

Sleep timer

Indication

1 hour 2 hours 3 hours 7 hours

Sleep timer off

44 44

Sleep Timer: The device will continue working for the designated

number of hours and then turn off.

Point the signal window of the remote controller toward the indoor

unit, and press the SLEEP button.

The timer information will be displayed on the remote controller. The

TIMER lamp lights with a beep from the indoor unit. When the sleep

timer has been set, the display indicates the turn-off time.

Example: If you set 3 hours sleep

time at 11:38 p.m., the turn-off

time is 2:38 a.m.

Press the (SLEEP) button and set the sleep timer.

The device will be turned off by the sleep

timer and turned on by on-timer.

How to Cancel Reservation

Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL)

button.

The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.

Example:

In this case, the device will turn off

in 2 hours (at 1:38 a.m.) and turn

on early so that the preset

temperature will be almost reached

at 6:00 next morning.

SLEEP

Sleep

timer

Start

(EN3) RAS/RAC-260/350GA 18/1/06, 10:15 AM14

– 15 –

Cooling

“ ”

and

dehumidifying

“ ”

Explanation of the sleep timer

The device will control the FAN SPEED and room temperature automatically so as to be quiet and

good for people’s health.

You can set the sleep timer to turn off after 1, 2, 3 or 7 hours. The FAN SPEED and room

temperature will be controlled as shown below.

Function Operation

The settings of room temperature and circulation are varied.

The room temperature will be

controlled 2°C above the

temperature and the FAN

SPEED will be set to LOW

setting 1 hour after the setting

of the sleep timer.

Fan

“ ”

Operation with the sleep timer

● If date or current time is not set, sleep timer can not be set.

● If you set the sleep timer after the off-, on/off- or off/on-timer has been set, the sleep timer

becomes effective instead of the off-, on/off- or off/on-timer set.

● You can not set other timer during sleep timer operation.

● The angle of horizontal air deflector shifts up automatically after three hours on sleep timer

operation.

● Fan will stop for a while if room temperature reaches setting temperature.

NOTE

Sleep

timer set

1 hour

3 hours later

7 hours later

2 hours

later

6 hours

later

(EN3) RAS/RAC-260/350GA 18/1/06, 10:15 AM15

– 16 –

HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER

Remove the cover as shown in the figure and take out the

old batteries.

Install the new batteries.

The direction of the batteries should match the marks in the

case.

1. Do not use new and old batteries, or different kinds of batteries

together.

2. Take out the batteries when you do not use the remote controller

for 2 or 3 months.

CAUTION

Push and pull to the

direction of arrow

(EN4) RAS/RAC-260/350GA 18/1/06, 10:17 AM16

– 17 –

Suitable Room Temperature Install curtain or blinds

Ventilation Effective Usage Of Timer

Do Not Forget To Clean The Air Filter

Please Adjust Suitable Temperature

For Baby And Children

Warning

Freezing temperature

is bad for health and a

waste of electric power.

It is possible to

reduce heat

entering the

room through

windows.

At night, please use the “OFF or ON timer

operation mode”, together with your wake up

time in the morning. This will enable you to

enjoy a comfortable room temperature. Please

use the timer effectively.

Dusty air filter will reduce the air volume and

the cooling efficiency. To prevent from wasting

electric energy, please clean the filter every 2

weeks.

Please pay attention to the room temperature

and air flow direction when operating the unit

for baby, children and old folks who have

difficulty in movement.

Caution

Do not close the room for a long period of

time. Occasionally open the door and windows

to allow the

entrance of

fresh air.

THE IDEAL WAYS OF OPERATION

(EN4) RAS/RAC-260/350GA 18/1/06, 10:17 AM17

– 18 –

FOR USER’S INFORMATION

The Air Conditioner And The Heat Source In The Room

Not Operating For A Long Time

When Lightning Occurs

Caution

If the amount of heat in the room is above the cooling

capability of the air conditioner (for example: more

people entering the room, using heating equipments

and etc.), the preset room temperature cannot be

achieved.

When the indoor unit is not to be used for a long

period of time, please switch off the power from the

mains. If the power from mains remains “ON”, the

indoor unit still consumes about 8W in the operation

control circuit even if it is in “OFF” mode.

Warning

To protect the whole unit during lightning, please

stop operating the unit and remove the plug from the

socket.

OFF

Interference From Electrical Products

Inverter-type

fluorescent

lamp.

To prevent

interference,

place at least

1m away.

Caution

To avoid noise interference, please place the indoor

unit and its remote controller at least 1m away from

electrical products.

(EN4) RAS/RAC-260/350GA 18/1/06, 10:17 AM18

– 19 –

ATTACHING THE AIR CLEANSING AND DEODORIZING FILTERS

Open the front panel.

● Pull up the front panel by holding it at both sides

with both hands.

Remove the filter.

● Push upward to release the claws and pull out

the filter.

Attaching the air cleansing and deodorizing fil-

ters to the filter.

● Attach the air cleansing and deodorizing filters to

the frame by gently compress its both sides and

release after insertion into filter frame.

Attach the filters.

● Attach the filters by ensuring that the surface

written “FRONT” is facing front.

● After attaching the filters, push the front panel at

three arrow portion as shown in figure and close

it.

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning,

stop operation and switch off the power supply.

CAUTION

Do not bend the air cleansing

and deodorizing filter as it may

cause damage to the structure.

NOTE

● In case of removing the air cleansing and deodorizing filters, please follow the above procedures.

● The cooling capacity is slightly weakened and the cooling speed becomes slower when the air cleansing

and deodorizing filters are used. So, set the fan speed to "HIGH" when using it in this condition.

● Air cleansing and deodorizing filters are washable and reusable up to 20 times by using vacuum

cleaner or water rinse under running tap water. Type number for this air cleansing filter is

<SPX-CFH11>. Please use this number for ordering when you want to renew it.

● Do not operate the air conditioner without filter. Dust may enter the air conditioner and fault may occur.

(EN4) RAS/RAC-260/350GA 18/1/06, 10:18 AM19

– 20 –

MAINTENANCE

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning,

stop operation and switch off the power supply.

1. AIR FILTER

Clean the air filter, as it removes dust inside the room. In case the air filter is full of dust, the air flow

will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the

filter following the procedure below.

CAUTION

Open the front panel and remove the filter

● Gently lift and remove the air cleansing and

deodorizing filter from the air filter frame.

Vacuum dust from the air filter and air cleansing

and deodorizing filter using vacuum cleaner. If

there is too much dust, rinse under running tap

water and gently brush it with soft bristle brush.

Allow filters to dry in shade.

● Re-insert the air cleansing and deodorizing

filter to the filter frame. Set the filter with

“FRONT” mark facing front, and slot them into

the original state.

● After attaching the filters, push the front panel

at three arrow portions as shown in figure

and close it.

CAUTION

● Do not wash with hot water at more than 40°C. The filter may shrink.

● When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to

the sun. The filter may shrink.

● Do not use detergent on the air cleansing and deodorizing filter as some detergent may deteriorate

the filter electrostatic performance.

PROCEDURE

NOTE:

● Air cleansing and deodorizing filter should be cleaned every month or sooner if noticeable loading

occurs. When used overtime, it may loose its deodorizing function. For maximum performance, it is

recommended to replace it every 3-6 months depending on application requirements.

(EN4) RAS/RAC-260/350GA 18/1/06, 10:18 AM20

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Hitachi RAC-350GA User manual

Brand: Hitachi

Model: RAC-350GA

Category: Split-system air conditioners

Type: User manual

This manual is also suitable for

RAC-260GA

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Hitachi RAC-350GA User manual

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Hitachi RAC-350GA User manual

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